For better preservation of volatile liquid vials are usually recommended to clog with wax. However, it is not convenient, if the bubble has to be open often. It is better to use clay: the flagellum from it insulate the tube and eventually condense and thread.
A. VINOGRADOV, Mogilev, Belarus
Recommend to read
MINI ONE
Nostalgic attempts to revive the once famous machines now become ubiquitous. Not spared this trend and famous company BMW, which at the Frankfurt motor show 2001 presented two car-twin —...
BENT BACK IS BETTER
The back of the chair can be flat, but bent much easier. How to do this? This does not require special equipment and technology is simple. Enough to have a furniture clamp and several...
